A calm-focus amino acid designed to help you stay composed, clear, and mentally controlled — without drowsiness. NutraBio L-Theanine delivers a clinically relevant 200 mg dose per capsule for smooth, steady relaxation and mental balance.

L-Theanine works by supporting alpha-wave brain activity — the calm-but-focused state you feel when you're locked in, not overwhelmed. It pairs exceptionally well with daily caffeine use by reducing jitters and crash while improving clarity and mood. Whether you're dealing with high stress, constant output, or simply want a cleaner sense of focus throughout the day, this is an effortless, stimulant-free way to stay centered. One ingredient. One purpose. Real presence.